Didn't recognize number so didn't answer.  Caller left message saying he wanted to set up delivery for a "personal medical alert system....and $3,000 in grocery discounts..."  He said the "system has already been paid for" -- "shipping has already been paid for..."  We have never ordered anything like this and can only surmise it's a scam of some sort.  A return call to that number revealed the number has been disconnected.

this number shows up as only calling in from Lincoln NE, and when I answer they hang up.   I call the number back and the recording says "the number you have dialed is not in service, please check the number and try again"